CN110607421A - High-frequency quenching inductor and quenching method for sheet workpieces - Google Patents
High-frequency quenching inductor and quenching method for sheet workpieces Download PDFInfo
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- CN110607421A CN110607421A CN201911047137.1A CN201911047137A CN110607421A CN 110607421 A CN110607421 A CN 110607421A CN 201911047137 A CN201911047137 A CN 201911047137A CN 110607421 A CN110607421 A CN 110607421A
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- Prior art keywords
- quenching
- induction
- frequency
- inductor
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a high-frequency quenching inductor for sheet workpieces, which comprises a high-frequency power supply and an inductor body connected with the high-frequency power supply, wherein the inductor body comprises an induction coil, and the induction coil is wound into a flat cylinder shape and forms a flat cavity; the induction coil is characterized by further comprising a base, contact plates are symmetrically arranged on the left and right of the base, pins are fixedly arranged on the contact plates, and the pins are respectively connected with two ends of the induction coil; the invention further provides a high-frequency induction quenching method for the sheet workpiece, which is particularly suitable for local quenching and heating of the shifting fork, and the high-frequency quenching inductor is used for carrying out induction heating on the sheet workpiece; then oil quenching and cooling are carried out; in the oil quenching cooling process, large plastic tank water is used for cooling from the outside of the oil drum, so that the oil quenching cooling effect is improved; the invention further carries out induction tempering, utilizes the high-frequency quenching inductor to carry out induction tempering heating on the sheet workpiece, and then carries out heat preservation and air cooling to eliminate stress and improve the quenching effect.
Description
Technical Field
The invention belongs to the technical field of quenching treatment of sheet workpieces, and particularly relates to a high-frequency quenching inductor and a quenching method for the sheet workpieces.
Background
The induction heating surface quenching is a quenching method which utilizes the principle of electromagnetic induction to enable a part to cut magnetic lines of force in an alternating magnetic field, generates induction current on the surface, rapidly heats the surface of the part in an eddy current mode according to the skin effect of alternating current, and then rapidly cools the surface of the part. It plays an important role in the field of heat treatment, and the technology is widely applied in China. The frequency of the surface hardening to be heated is different and can be divided into ultrahigh frequency (27 MHz), high frequency (200-. Because of the different current frequencies, the induced current penetrates the human body to different depths when heating. When the induction current is used at high frequency, the induction current has small penetration depth (about 0.5 mm), and is mainly used for surface quenching of small-module gears and small-shaft parts; when the medium frequency is used, the induced current penetrates the human depth (about 5-10 mm), and is mainly used for surface quenching of gears, camshafts and crankshafts with medium and small moduli; when the ultrahigh frequency is used, the induced current has extremely small penetration depth and is mainly used for surface quenching of sawteeth, cutting edges and thin parts; when the power frequency is used, the current penetration depth is large (more than 10 mm), and the method is mainly used for surface quenching of the cold roll;
however, the quenching inductor can not quench and heat sheet workpieces at present, such as the shifting fork shown in fig. 1, the local surface in the shifting fork is required to be quenched, and the profile modeling inductor can not be made to be quenched as required due to the small size of the opening part;
therefore, the inventor provides a high-frequency quenching inductor and a quenching method for sheet workpieces by combining various factors.
Disclosure of Invention
The invention aims to: in order to solve the technical problems related to the background technology, a high-frequency quenching inductor for sheet workpieces and a quenching method are provided.
The technical scheme adopted by the invention is as follows:
the high-frequency quenching inductor for the sheet workpieces comprises a high-frequency power supply and an inductor body connected with the high-frequency power supply, wherein the inductor body comprises an induction coil, and the induction coil is wound to form a flat cylinder shape and a flat cavity.
The invention further adopts the technical scheme that: the induction coil is characterized by further comprising a base, contact plates are symmetrically arranged on the base in the left-right direction, pins are fixedly arranged on the contact plates, and the pins are respectively connected with the two ends of the induction coil.
The invention further adopts the technical scheme that: an insulating plate is arranged between the contact plates.
The invention further adopts the technical scheme that: the contact plates are fixedly connected through insulating bolts.
The invention further adopts the technical scheme that: and the contact plate is provided with a wiring pin connected with the pin.
The invention further adopts the technical scheme that: the base is symmetrically provided with fixing holes.
A high-frequency induction quenching method for sheet workpieces comprises the following specific steps:
s1, positioning a tool; positioning a sheet workpiece in a flat cavity of a high-frequency quenching inductor through a tool;
s2, high-frequency induction heating; induction heating the sheet workpiece by using a high-frequency quenching inductor;
s3, unloading the workpiece;
s4, oil quenching and cooling; and carrying out oil quenching cooling on the induction-heated sheet workpiece by using quenching oil.
The invention further adopts the technical scheme that: and in the S4, the unloaded workpiece is cooled from the outside of the oil barrel by using large plastic box water in the cooling process of immersing the workpiece in quenching oil.
The invention further adopts the technical scheme that: and S5, induction tempering, namely performing induction tempering heating on the thin plate workpiece by using a high-frequency quenching inductor, preserving heat and then cooling in air.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the high-frequency quenching inductor for the sheet workpieces, the induction coil is wound into a flat cylinder shape to form a flat cavity, so that the high-frequency induction quenching heating of the sheet workpieces is facilitated, and the high-frequency quenching inductor is particularly suitable for local quenching heating of the shifting fork.
2. The invention further provides a high-frequency induction quenching method for the sheet workpieces, which utilizes a high-frequency quenching inductor to perform induction heating on the sheet workpieces; then oil quenching and cooling are carried out; and carrying out oil quenching cooling on the induction-heated sheet workpiece by using quenching oil.
3. According to the invention, large plastic tank water is used for cooling from the outside of the oil drum in the oil quenching cooling process, so that the oil quenching cooling effect is improved.
4. The invention further carries out induction tempering, utilizes the high-frequency quenching inductor to carry out induction tempering heating on the sheet workpiece, and then carries out heat preservation and air cooling to eliminate stress and improve the quenching effect.
Drawings
FIG. 1 is a schematic diagram of a fork in a conventional thin plate workpiece;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic flow chart of the present invention;
the labels in the figure are: 1. a base; 2. a fixing hole; 3. an induction coil; 4. a pin; 5. a wiring pin; 6. an insulating bolt; 7. a contact plate; 8. an insulating plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In a first embodiment, referring to fig. 2 to 3, an induction hardening inductor for sheet workpieces comprises a high-frequency power supply and an inductor body connected with the high-frequency power supply, wherein the inductor body comprises an induction coil 3, and the induction coil 3 is wound to form a flat cylinder shape and a flat cavity; the induction coil is characterized by further comprising a base 1, contact plates 7 are symmetrically arranged on the base 1 left and right, pins 4 are fixedly arranged on the contact plates 7, and the pins 4 are respectively connected with two ends of the induction coil 3; an insulating plate 8 is arranged between the contact plates 7; the contact plates 7 are fixedly connected through insulating bolts 6; the contact plate 7 is provided with a wiring pin 5 connected with the pin 4; the base 1 is symmetrically provided with fixing holes 2.
A high-frequency induction quenching method for sheet workpieces comprises the following specific steps:
s1, positioning a tool; positioning a sheet workpiece in a flat cavity of a high-frequency quenching inductor through a tool;
s2, high-frequency induction heating; induction heating the sheet workpiece by using a high-frequency quenching inductor;
s3, unloading the workpiece;
s4, oil quenching and cooling; and carrying out oil quenching cooling on the induction-heated sheet workpiece by using quenching oil.
The invention further adopts the technical scheme that: and in the S4, the unloaded workpiece is cooled from the outside of the oil barrel by using large plastic box water in the cooling process of immersing the workpiece in quenching oil.
The invention further adopts the technical scheme that: and S5, induction tempering, namely performing induction tempering heating on the thin plate workpiece by using a high-frequency quenching inductor, preserving heat and then cooling in air.
The working principle is as follows: according to the high-frequency quenching inductor for the sheet workpieces, the induction coil is wound into a flat cylinder shape, and a flat cavity is formed, so that the high-frequency induction quenching heating of the sheet workpieces is facilitated; the invention further provides a high-frequency induction quenching method for the sheet workpieces, which utilizes a high-frequency quenching inductor to perform induction heating on the sheet workpieces; then oil quenching and cooling are carried out; carrying out oil quenching cooling on the induction-heated sheet workpiece by using quenching oil; in the invention, large plastic tank water is used for cooling from the outside of the oil drum in the oil quenching cooling process, so that the oil quenching cooling effect is improved; the invention further carries out induction tempering, utilizes the high-frequency quenching inductor to carry out induction tempering heating on the sheet workpiece, and then carries out heat preservation and air cooling to eliminate stress and improve the quenching effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a sheet metal class work piece high frequency quenching inductor, includes high frequency power supply and the inductor body of being connected with high frequency power supply, the inductor body includes induction coil (3), its characterized in that: the induction coil (3) is wound to form a flat cylinder shape and forms a flat cavity.
2. The induction hardening induction device for high-frequency quenching of thin plate-like workpieces according to claim 1, wherein: the induction coil is characterized by further comprising a base (1), contact plates (7) are symmetrically arranged on the base (1) in the left-right direction, pins (4) are fixedly arranged on the contact plates (7), and the pins (4) are respectively connected with two ends of the induction coil (3).
3. The induction hardening induction device for thin plate-like workpieces according to claim 2, wherein: an insulating plate (8) is arranged between the contact plates (7).
4. The induction hardening induction device for high-frequency quenching of thin plate-like workpieces according to claim 3, wherein: the contact plates (7) are fixedly connected through insulating bolts (6).
5. The induction hardening induction device for thin plate-like workpieces according to any one of claims 1 to 4, wherein: and the contact plate (7) is provided with a wiring pin (5) connected with the pin (4).
6. The induction hardening induction device for high-frequency quenching of thin plate-like workpieces according to claim 5, wherein: the base (1) is symmetrically provided with fixing holes (2).
7. A high-frequency induction quenching method for sheet workpieces is characterized by comprising the following steps: the method comprises the following specific steps:
s1, positioning a tool; positioning a sheet workpiece in a flat cavity of a high-frequency quenching inductor through a tool;
s2, high-frequency induction heating; induction heating the sheet workpiece by using a high-frequency quenching inductor;
s3, unloading the workpiece;
s4, oil quenching and cooling; and carrying out oil quenching cooling on the induction-heated sheet workpiece by using quenching oil.
8. The high-frequency induction hardening method of a thin plate-like workpiece according to claim 7, characterized in that: and in the S4, the unloaded workpiece is cooled from the outside of the oil barrel by using large plastic box water in the cooling process of immersing the workpiece in quenching oil.
9. The high-frequency induction hardening method of a thin plate-like workpiece according to claim 7, characterized in that: and S5, induction tempering, namely performing induction tempering heating on the thin plate workpiece by using a high-frequency quenching inductor, preserving heat and then cooling in air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047137.1A CN110607421A (en) | 2019-10-30 | 2019-10-30 | High-frequency quenching inductor and quenching method for sheet workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047137.1A CN110607421A (en) | 2019-10-30 | 2019-10-30 | High-frequency quenching inductor and quenching method for sheet workpieces |
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| Publication Number | Publication Date |
|---|---|
| CN110607421A true CN110607421A (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911047137.1A Pending CN110607421A (en) | 2019-10-30 | 2019-10-30 | High-frequency quenching inductor and quenching method for sheet workpieces |
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| Country | Link |
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| CN (1) | CN110607421A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477860A (en) * | 2021-07-02 | 2021-10-08 | 重庆天力通科技开发有限公司 | Forging and pressing device for automobile part production and using method thereof |
| CN113528788A (en) * | 2021-07-27 | 2021-10-22 | 温州天和汽车部件有限公司 | Shifting fork surface high-frequency quenching process |
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| JP4153895B2 (en) * | 2003-12-25 | 2008-09-24 | 新日本製鐵株式会社 | Induction heating apparatus and induction heating method for metal strip |
| CN201942713U (en) * | 2011-01-21 | 2011-08-24 | 重庆派斯克刀具制造有限公司 | High-frequency welding and quenching inductor for woodworking plane edge |
| CN202039091U (en) * | 2011-04-19 | 2011-11-16 | 西安煤矿机械有限公司 | Profiled induction coil for sliding shoe surface quenching |
| DE102013017858A1 (en) * | 2013-10-26 | 2014-07-24 | Daimler Ag | Inductor for heating of workpiece e.g. metal sheets, has induction coil which is formed helically with turns, such that turns are parallel to one above the other and spaced from each other when seen in perpendicular direction |
| CN204058531U (en) * | 2014-08-11 | 2014-12-31 | 上海赛科利汽车模具技术应用有限公司 | The special inductor assembly of a kind of plane |
| CN205133666U (en) * | 2015-11-23 | 2016-04-06 | 唐山龙润机械有限公司 | High frequency quenches and uses induction coil |
-
2019
- 2019-10-30 CN CN201911047137.1A patent/CN110607421A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4153895B2 (en) * | 2003-12-25 | 2008-09-24 | 新日本製鐵株式会社 | Induction heating apparatus and induction heating method for metal strip |
| CN201942713U (en) * | 2011-01-21 | 2011-08-24 | 重庆派斯克刀具制造有限公司 | High-frequency welding and quenching inductor for woodworking plane edge |
| CN202039091U (en) * | 2011-04-19 | 2011-11-16 | 西安煤矿机械有限公司 | Profiled induction coil for sliding shoe surface quenching |
| DE102013017858A1 (en) * | 2013-10-26 | 2014-07-24 | Daimler Ag | Inductor for heating of workpiece e.g. metal sheets, has induction coil which is formed helically with turns, such that turns are parallel to one above the other and spaced from each other when seen in perpendicular direction |
| CN204058531U (en) * | 2014-08-11 | 2014-12-31 | 上海赛科利汽车模具技术应用有限公司 | The special inductor assembly of a kind of plane |
| CN205133666U (en) * | 2015-11-23 | 2016-04-06 | 唐山龙润机械有限公司 | High frequency quenches and uses induction coil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477860A (en) * | 2021-07-02 | 2021-10-08 | 重庆天力通科技开发有限公司 | Forging and pressing device for automobile part production and using method thereof |
| CN113477860B (en) * | 2021-07-02 | 2022-06-07 | 重庆天力通科技开发有限公司 | Forging and pressing device for automobile part production and using method thereof |
| CN113528788A (en) * | 2021-07-27 | 2021-10-22 | 温州天和汽车部件有限公司 | Shifting fork surface high-frequency quenching process |
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Application publication date: 20191224 |
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| RJ01 | Rejection of invention patent application after publication |